Dan Mašek questions

Dan Mašek answers

• Finding first non-zero value in an image
• Concatenate OpenCV Mat and a single value
• cv2.fillPoly strange results
• Python - Convert image to a string of pixel values
• Draw Text inside circle OpenCV
• Compression of an image
• How to resize without interpolation (zero-padding) in OpenCV?
• Optimized skeleton function for opencv with python
• Detecting vertical lines using Hough transforms in opencv
• Boost logging, filter by named scope